...................................................... Barracuda 18FC Disc Drive ...................................................... ST118273FC ...................................................... ...................................................... ...................................................... Product Manual, Volume 1 ......................................................
...................................................... Barracuda 18FC Disc Drive ...................................................... ST118273FC ...................................................... ...................................................... ...................................................... Product Manual, Volume 1 ......................................................
© 1997, 1998 Seagate Technology, Inc. All rights reserved November 1998 Publication number: 77767524, Rev. B Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology, Inc. Barracuda, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either trademarks or registered trademarks of Seagate Technology, Inc. or one of its subsidiaries. All other trademarks or registered trademarks are the property of their respective owners.
Revision status summary sheet Revision Date Writer/Engineer Sheets Affected A B 08/04/98 11/24/98 L. Newman/R. Metzner L. Newman/R. Metzner 1/1, v thru viii, 1 thru 64. 52.
Barracuda 18FC Product Manual, Rev. B v Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1.
vi Barracuda 18FC Product Manual, Rev. B 6.5 6.6 6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 6.4.5 Air cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Electromagnetic susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . .
Barracuda 18FC Product Manual, Rev. B vii List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Barracuda 18FC family disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Barracuda 18FC disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Barracuda 18FC Product Manual, Rev. B 1.0 1 Scope This manual describes Seagate® BarracudaTM 18FC (Fibre Channel) disc drives. Barracuda 18FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifications to the extent described in this manual. The Fibre Channel Interface Manual (part number 77767496) describes the general Fibre Channel Arbitrated Loop characteristics of this and other Seagate Fibre Channel drives. Figure 1.
Barracuda 18FC Product Manual, Rev. B 2.0 3 Applicable standards and reference documentation The drive has been developed as a system peripheral to the highest standards of design and construction. The drive depends upon its host equipment to provide adequate power and environment in order to achieve optimum performance and compliance with applicable industry and governmental regulations.
4 Barracuda 18FC Product Manual, Rev. B Australian C-Tick If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995 and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Management Agency (SMA). 2.3 Reference documents Barracuda 18FC Installation Guide Seagate part number: 77767525 Fibre Channel Interface Manual Seagate part number: 77767496 ANSI Fibre Channel Documents X3.
Barracuda 18FC Product Manual, Rev. B 3.0 5 General description Barracuda 18FC drives are random access storage devices designed to support the Fibre Channel Arbitrated Loop (FC-AL) and SCSI Fibre Channel Protocol as described in the ANSI specifications, this document, and the Fibre Channel Interface Manual (part number 77767496) which describes the general interface characteristics of this drive.
6 Barracuda 18FC Product Manual, Rev. B 3.
Barracuda 18FC Product Manual, Rev. B 3.4 • • • • • 7 Reliability 1,000,000 hour MTBF LSI circuitry Balanced low mass rotary voice coil actuator Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.) Dithering 3.5 Unformatted and formatted capacities Standard OEM models are formatted to 512 bytes per block. You can order other capacities by requesting a different sparing scheme and logical block size. The standard OEM model capacities are listed below. ST118273FC Formatted Unformatted 18.
Barracuda 18FC Product Manual, Rev. B 4.0 9 Performance characteristics This section provides detailed information concerning performance-related characteristics and features of ST118273FC drives. 4.1 Internal drive characteristics ST118273FC 23.14 18.21 20 155,000 1,165 7,501 8,250 120-190 7,200 4.17 Drive capacity Read/write data heads Bytes per track Bytes per surface Cylinders/tracks per surface Tracks per inch Internal data rate Disc rotation speed Avg rotational latency 4.2 ...................
10 4.2.3 Barracuda 18FC Product Manual, Rev. B General performance characteristics ST118273FC Minimum sector interleave 1 to 1 Data buffer to/from disc media (one 512-byte logical block)* Minimum Average Maximum 15.2 MBytes/sec 20.4 MBytes/sec 23.7 MBytes/sec Data buffer transfer rate to/from disc media (<1 track)* Minimum Average Maximum 10.8 MBytes/sec 16.0 MBytes/sec 17.
Barracuda 18FC Product Manual, Rev. B 4.5 Note. 11 Cache operation Refer to the Fibre Channel Interface Manual for more detail concerning the cache bits. Of the 1,024 Kbytes physical buffer space in the drive, 967.5 Kbytes can be used as a cache. The cache can be divided into logical segments from which data is read and to which data is written. The drive keeps track of the logical block addresses of the data stored in each segment of the cache.
12 Barracuda 18FC Product Manual, Rev. B For write caching, the same buffer space and segmentation is used as set up for read functions. When a write command is issued, the cache is first checked to see if any logical blocks that are to be written are already stored in the cache from a previous read or write command. If there are, the respective cache segments are cleared. The new data is cached for subsequent read commands.
Barracuda 18FC Product Manual, Rev. B 5.0 13 Reliability specifications The following reliability specifications assume correct host and drive operational interface, including all interface timings, power supply voltages, and environmental requirements. Seek error rate: Recoverable media error rate (using OEM default settings): Unrecovered media data: Miscorrected media data: Interface error rate: MTBF: Service life: Preventive maintenance: 5.
14 Barracuda 18FC Product Manual, Rev. B with a Medium (03h) or Hardware error (04h) reported in the Sense Key. This is an unrecoverable seek error. Unrecoverable seek errors are classified as failures for MTBF calculations. 5.2 S.M.A.R.T. S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology.
Barracuda 18FC Product Manual, Rev. B 15 Error rate is the number of errors per operation. The algorithm that S.M.A.R.T. uses to record rates of error is to set thresholds for the number of errors and their interval. If the number of errors exceeds the threshold before the interval expires, the error rate is considered to be unacceptable. If the number of errors does not exceed the threshold before the interval expires, the error rate is considered to be acceptable.
16 Barracuda 18FC Product Manual, Rev. B Month Parts per million (PPM) 1 2,364 2 1,422 3 1,403 4 1,391 5 1,317 6 1,255 7 1,162 8+ 1,025 Failure rate is calculated as follows: • • • • No system-induced failures counted PPM targets include 30% no defect found and handling failures Based on 1,000,000 MTBF and 720 POH per month Month 1’s rate includes a 300 PPM installation failure 5.3.3 Preventive maintenance No routine scheduled preventive maintenance is required. 5.3.
Barracuda 18FC Product Manual, Rev. B 17 Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in transit. Contact your authorized Seagate distributor to purchase additional boxes. Seagate recommends shipping by an air-ride carrier experienced in handling computer equipment. Product repair and return information Seagate customer service centers are the only facilities authorized to service Seagate drives.
Barracuda 18FC Product Manual, Rev. B 6.0 19 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the drive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a single drive are shown below. On-board +3.3V current is derived on the drive. Values indicated apply at the drive connector. Parameters, other than spindle start, are measured after a 10-minute warm-up.
20 Barracuda 18FC Product Manual, Rev. B 6.2.1 Conducted noise immunity Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive connector. 0 to 100 kHz 100 kHz to 10 MHz 6.2.2 +5V +12V (with spindle motor not running) 150mV 100mV 150mV 100mV Power sequencing The drive does not require power sequencing.
Barracuda 18FC Product Manual, Rev. B 6.4 21 Environmental limits Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C). Maximum wet bulb temperature is 82°F (28°C). 6.4.1 Temperature a. Operating The MTBF specification for the drive is based on operating at a local ambient temperature of 86°F (30°C).
22 Barracuda 18FC Product Manual, Rev. B mal levels may promote degraded operational performance during the abnormal shock period. Specified operational performance will continue when normal operating shock levels resume. Shock may be applied in the X, Y, or Z axis. Shock is not to be repeated more than two times per second. c. Non-operating The limits of non-operating shock apply to all conditions of handling and transportation. This includes both isolated drives and integrated drives.
Barracuda 18FC Product Manual, Rev. B 6.5 23 Electromagnetic susceptibility As a component part, the drive is not required to meet any susceptibility performance requirements. It is the responsibility of the system integrator to perform tests required to ensure that equipment operating in the same system as the drive does not adversely affect the performance of the drive. See paragraph 6.2, “DC power requirements.” 6.
Barracuda 18FC Product Manual, Rev. B 7.0 25 Defect and error management The drive, as delivered, complies with this product manual. The read error rates and specified storage capacities are not dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCSI protocol involves the drive internal defect/error management and FC-AL system error considerations (errors in communications between the initiator and the drive).
26 Barracuda 18FC Product Manual, Rev. B When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are one. The drive will still perform data recovery actions within the limits defined by the Read Retry Count, Write Retry Count, and Recovery Time Limit parameters. However, the drive does not report any unrecovered errors.
Barracuda 18FC Product Manual, Rev. B 8.0 27 Installation Barracuda 18FC disc drive installation is a plug-and-play process. There are no jumpers, switches, or terminators on the drive. Simply plug the drive into the host’s 40-pin Fibre Channel backpanel connector (FC-SCA)— no cables are required. See Section 9.5 for additional information about this connector. Use the FC-AL interface to select drive ID and all option configurations for devices on the loop.
28 Barracuda 18FC Product Manual, Rev. B Drive Front Pin 1 J6 Reserved Port A Bypass LED [1] Port B Bypass LED [1] Fault LED [1] Reserved Active LED [2] Reserved +5V Active LED [1] Ground [3] Figure 6. 8.2.1 [1] The drive has a 2.2K ohm resistor in series with this LED driver. Tie the minus side of an external high-efficiency LED (i.e., 2ma) to this pin. Connect the plus side of the LED to +5V. [2] An external current-limiting resistor is required when connecting an LED to this pin.
Barracuda 18FC Product Manual, Rev. B 29 The drive should be oriented, or air flow directed, so that the least amount of air-flow resistance is created while providing air flow to the electronics and HDA. Also, the shortest possible path between the air inlet and exit should be chosen to minimize the travel length of air heated by the drive and other heat sources within the rack, cabinet, or drawer environment. Possible air-flow patterns are shown in Figure 7.
30 Barracuda 18FC Product Manual, Rev. B PCBA and HDA temperatures Component Reference MTBF 1,000,000 hours at 30°C ambient temperature (°C) HDA Transceiver Aurora Servo DSP (Bailey) Motor Control (Musket) Read Chain (King Cobra) Figure 9 1 2 3 4 5 45 56 53 48 45 48 To obtain the maximum temperature for each of the reference components listed, add 20°C to the 1,000,000 hour MTBF case temperatures. The maximum allowable HDA case temperature is 60°C (see Figure 9).
Barracuda 18FC Product Manual, Rev. B 8.5 31 Drive mounting Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface. The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm).
Barracuda 18FC Product Manual, Rev. B 9.0 33 Interface requirements This section partially describes the interface requirements as implemented on ST118273FC drives. Additional information is provided in the Fibre Channel Interface Manual (part number 77767496). 9.1 FC-AL features This section lists the Fibre Channel-specific features supported by ST118273FC drives. 9.1.1 Fibre Channel link service frames Table 3 lists the link services supported by ST118273FC drives.
34 Barracuda 18FC Product Manual, Rev. B 9.1.4 Fibre Channel port login Table 6 identifies the required content of the N_Port Login (PLOGI) payload from an initiator.
Barracuda 18FC Product Manual, Rev. B 9.1.5 35 Fibre Channel port login accept Table 7 identifies the N_Port Login access payload values.
36 Barracuda 18FC Product Manual, Rev. B 9.1.8 Fibre Channel fabric login Table 10 lists the fabric login payload from the drive.
Barracuda 18FC Product Manual, Rev. B 9.1.9 37 Fibre Channel fabric accept login Table 10 lists the required content of the Fabric Login Accept (ACC) payload from the fabric.
38 Barracuda 18FC Product Manual, Rev. B 9.1.10 Fibre Channel Arbitrated Loop options Table 12 lists the FC-AL options supported by Barracuda 18FC drives. Table 12: FC-AL options supported Option Supported OPEN Half Duplex Accepted from another device. OPEN Full Duplex Send to open another device. Accepted from another device. Private Loop Yes Public Loop No Old Port State No Loop Position Yes Loop Position Report Yes 9.
Barracuda 18FC Product Manual, Rev. B 9.3 SCSI commands supported Table 13 lists the SCSI commands that ST118273FC drives support.
40 Table 13: Barracuda 18FC Product Manual, Rev.
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42 Barracuda 18FC Product Manual, Rev. B 9.3.1 Inquiry data Table 14 lists the Inquiry command data that the drive should return to the initiator per the format given in the Fibre Channel Interface Manual .
Barracuda 18FC Product Manual, Rev. B 43 4. Changeable values Changeable values form a bit mask, stored in nonvolatile memory, that dictates which of the current values and saved values can be changed by a Mode Select command. A one (1) indicates the value can be changed. A zero (0) indicates the value is not changeable. For example, in Table 15, refer to Mode page 81, in the row entitled “CHG.” These are hex numbers representing the changeable values for Mode page 81.
44 Table 15: Barracuda 18FC Product Manual, Rev.
Barracuda 18FC Product Manual, Rev. B 9.4 45 Miscellaneous operating features and conditions Table 16 lists various features and conditions. A “Y” in the support column indicates the feature or condition is supported. An “N” in the support column indicates the feature or condition is not supported.
46 9.5 Barracuda 18FC Product Manual, Rev. B FC-AL physical interface Figure 10 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA) and the J6 connector. Figure 12 provides the dimensions of the FC-SCA. Figure 13 provides the dimensions of the J6 connector. Details of the physical, electrical, and logical characteristics are provided within this section. The operational aspects of Seagate’s Fibre Channel drives are provided in the Fibre Channel Interface Manual. J6 Figure 10.
Barracuda 18FC Product Manual, Rev. B 9.5.2 47 Connector requirements Recommended mating SCA part number: Part description Positions Part number Features AMP Vertical (SCA sequence) 40 787317-1 With polarization Berg 40 71781 With polarization Methode 40 512-220-91-101N With polarization Molex 40 717431040 With polarization The FC-AL SCA device connector is illustrated in Figure 12. The J6 connector is illustrated in Figure 13. 1.618 ± .003 in (41.1 ± 0.
48 Barracuda 18FC Product Manual, Rev. B 9.5.3 Electrical description Fibre Channel drives use the FC-SCA connector for: • • • • • DC power FC-AL interface Drive select (device identification) Option selection Enclosure Services interface This 40-pin connector is designed to plug directly into a backpanel. External cables are not required. 9.5.4 Pin descriptions This section provides a pin-out of the FC-SCA and a description of the functions provided by the pins.
Barracuda 18FC Product Manual, Rev. B 9.5.5 49 FC-AL transmitters and receivers A typical FC-AL differential copper transmitter and receiver pair is shown in Figure 14. The receiver is required to provide the AC coupling to eliminate ground shift noise. 68 .01 RX TX Transmitter TY 150 Differential Transfer Medium 9.5.6 Receiver RY 68 .01 150 Figure 14. 150 FC-AL transmitters and receivers Power Power is supplied through the FC-SCA with support for +5 volts and +12 volts.
50 Barracuda 18FC Product Manual, Rev. B 9.5.9 Enable port bypass signals The – Enable Bypass Port A (– EN BYP Port A ) and – Enable Bypass Port B (– EN BYP Port B) signals control the port bypass circuits (PBC) located external to the disc drive. The PBC allows a loop to remain functional in the event of a drive failure or removal. When these signals are active, low, the PBC bypasses the drive on the associated port.
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52 9.6 Barracuda 18FC Product Manual, Rev. B Signal characteristics This section describes the electrical signal characteristics of the drive’s input and output signals. See Table 18 on page 48 for signal type and signal name information. 9.6.1 TTL characteristics Table 22 provides the TTL characteristics. Table 22: TTL characteristics State Voltage Current Input high 1.9 < V IH < 5.5V 0 < IIH < ±500nA max. Input low -0.5V < VIL < 0.9V 0 < IIL < ±500nA max. Output high (-EN Bypass A, B) 2.
Barracuda 18FC Product Manual, Rev. B 53 Figure 15 provides the data output valid eye diagram relative to the bit cell time. Vout (mv) 941 ps 800 ps Figure 15. 9.6.4 Transmit eye diagram Differential PECL input The serial PECL input signal voltage characteristics are provided in Table 25. Table 25: Differential PECL input characteristics Description Parameter Notes Serial input voltage swing 200 < V in < 1.
Barracuda 18FC Product Manual, Rev. B 10.0 55 Seagate Technology support services Online Services Internet Visit Seagate on the Internet at http://www.seagate.com for online information about Seagate products. You can also send e-mail with your disc or tape questions to: Presales: DiscPreSales@Seagate.com or Tape_Sales_Support@Seagate.com Technical support: DiscSupport@Seagate.com or TapeSupport@Seagate.
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Barracuda 18FC Product Manual, Rev. B 57 Fax Services—All European Countries Presales/Technical Support 31-20-653-3513 Warranty Repair 31-20-653-4320 Africa/Middle East Support Services For presales, technical support, warranty repair and FAX services in Africa and the Middle East,dial our European call center at 31-20-316-7222 from 8:30 A.M. to 5:00 P.M. (European central time) Monday through Friday, or send a FAX to 31-20-653-4320. The European call center is located in Amsterdam, The Netherlands.
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60 data page out (DPO) bit 12 data rate internal 9 data transfer rate 10 data valid eye 53 Date code page command 39 DC power 48 requirements 19 defect and error management 25 deferred error handling 45 description 5 device selection IDs 27 devices 27 differential PECL input 53 dimensions physical 23 Disable page out command 40 disc rotation speed 9 Disconnect/reconnect control (page 02h) command 39 Download microcode and save modes (5) 40 Download microcode mode (4) 40 Download microcode with offsets and s
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62 Busy 45 Check condition 45 Condition met/good 45 Good 45 Intermediate/condition met/good 45 Intermediate/good 45 Reservation conflict 45 Task set full 45 miscorrected media data 13 mode page 08h 11 Mode select (10) command 41 command 39 Mode sense (10) command 41 command 39 data, table 42, 44 monitoring state 17 motor start controls 50 option 10 mounting 31 configuration dimensions 23 holes 31 orientations 28 MTBF 13, 15 defined 15 N N_Port Login (PLOGI) 33 payload 34 payload values 35 NN 34, 37 no seek
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64 synchronized spindle operation 45 T target reset function 33 task management functions 33 Abort task set 33 Clear ACA 33 Clear task set 33 Target reset 33 terminate task 33 task management response codes 33 Function complete 00 33 Function not supported 05 33 Function reject 04 33 task set full status 45 technical support services 55 temperature limits 21 measurement locations 30 regulation 3 See also cooling Temperature measurement locations 30 terminate task function 33 terminators 27 Test unit ready
Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 77767524, Rev.